Perth and Kinross · Scotland

Window & door mastic in Forgandenny, Perth and Kinross

Window and door frames in Forgandenny need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.

  • Old mastic that has gone black or come away
  • White mastic on grey or black frames
  • Cracked internal joints between frame and plaster

Need window mastic in Forgandenny?

Window mastic in Forgandenny

There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. If you’re dealing with leaking joints at the ends of sills and water coming in at the bottom corners of a door, we can put it right, on patio & French doors, aluminium frames and uPVC windows alike.

Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill.

All of our work is guaranteed for twelve months, in Forgandenny and everywhere else we cover.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Forgandenny (PH2)
Region
Perth and Kinross
Cover
One year on every job
Quote
Quoted before any work starts
Email
info@mrmastic.co.uk
Last updated
26 October 2026

What we can’t put right

Some problems need a builder, plumber or other trade rather than us:

  • Faulty window hardware
  • Rotten timber, which needs a joiner first
  • Damp coming through the wall itself rather than the frame joint

Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before booking.

Where we work in Forgandenny

  • Aluminium frames
  • Timber windows & doors
  • Patio & French doors
  • Window sills
  • Composite doors
  • uPVC windows

Can I do it myself?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.

Forgandenny homes and the weather

Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.

In the older streets around Forgandenny Parish Church, the joint between an old wall and a newer frame is generally the first place rain gets in.

Forgandenny is about 4 miles south of Perth, in Perth and Kinross. Every kind of property in Forgandenny is covered for window mastic. Every job comes with our one-year guarantee. Forgandenny is one of 107 places in Perth and Kinross we cover for window mastic. There’s also a page for Dundee, roughly 21 miles from Forgandenny.

We cover every part of the PH2 postcode area for window mastic. Streets in the area include Rossie Place, County Place and Thorney Shade, and we cover them all. Main roads around Forgandenny include the B935. We also cover the places around Forgandenny: Milltown of Aberdalgie (2 miles north-west), Bridge of Earn (3 miles east), Scoonieburn (3 miles north-east), Oakbank (3 miles north) and Tarsappie (3 miles north-east). Within a short drive, we also cover Crieff (14 miles west), Auchterarder (10 miles west), Kinross (10 miles south), Letham (4 miles north), Scone (6 miles north-east) and Tulloch (4 miles north).

Near you in Forgandenny

Forgandenny’s nearest station is Perth station, roughly 3.3 miles north-east. Other landmarks nearby include Perth Museum (3.7 miles north-east) and Bridge of Earn Hospital (3.2 miles east). Open spaces near Forgandenny include Mailer Hill and Dupplin Lake.

Map of Forgandenny © OpenStreetMap contributors

Do you need window mastic in Forgandenny?

Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.

If you can see any of these, it’s time to have the joints looked at:

  • Mastic that has split away from the wall
  • Draughts coming in around windows and doors
  • A bead that doesn’t match the frame
  • Untidy mastic left by window fitters

For landlords with property near Perth station, renewing tired window mastic between tenants heads off draught and damp complaints.

Comparing quotes

  • How long the guarantee is
  • Whether the sealant suits the joint
  • What the cure time is
  • Whether VAT is included

Choosing a sealant specialist

Aftercare tips

Once the sealant has cured, a few habits help it last:

  • Use gentle cleaners on frames and sealant
  • Check the mastic once a year
  • Wipe condensation off the frames
  • Avoid harsh chemicals near the mastic

Check the drainage slots in the frames aren’t blocked, so water can run away instead of sitting against the joint.

Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.

How we quote for window mastic

For a quick quote, just ask. What matters most is:

  • Any mould that needs treating
  • The number and length of the joints
  • The old material and how stubborn it is
  • Whether the work is at height

We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please email us at info@mrmastic.co.uk and we’ll talk you through it.

Helping us quote

To help us quote quickly, please include:

  • Pictures of the joints, sent by email
  • Where the job is, and your postcode
  • The type of property
  • Any access issues, like height or stairs

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, email us at info@mrmastic.co.uk.

Questions from Forgandenny

Is Forgandenny in your area for window mastic?

Yes, Forgandenny is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.

Will you come out to Forgandenny?

Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.

How long does it take to reseal the windows on a house?

A handful of frames is a short visit. We confirm the timing with your quote.

What do you put in the joint?

It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

Will you leave a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Are you an approved applicator?

Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.

How do I get a quote for window mastic in Forgandenny?

Every job is different, so each one gets its own quote. To get one, send an email to info@mrmastic.co.uk with a short description of the job.

Are you insured?

Yes. Full insurance covers our work.

How it works

There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a few frames, or a day or more for a whole house in most cases. Somewhere like Forgandenny may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.

  1. We start by checking each window and door with you.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. We clear up and check every joint is fully closed.

Before we arrive

  • Mention any parking rules near the property
  • Mention if the joints have been sealed before
  • Let us know about stairs, lifts or work at height

Ask for a quote

There’s no standard price list. Instead, we give you a clear quote for your job. To arrange one, email us at info@mrmastic.co.uk.

Ask for a quote

Advice

How the job changes by surface

Composite doors

A composite door generally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.

Timber windows & doors

On period timber windows, traditional sand mastic is sometimes the better choice. We’ll tell you which suits your home.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job